Hi Princess,
A harbor in dreams and visions usually means a time in a ministry’s existence (especially evangelical outreach ministries, see the meaning of ship or boat), when they will not be active but paused, very similar to a garage at a residence with the owner’s parked car in the garage. This usually happens so that the ministry can be prepared for the next outreach, or for repairs (which means that the ministry is not yet ready to go out) or to load goods (which means that the ministry needs to be prepared and equip[ped first, before it can go out). Just check the meanings of other symbols in the dream to see what it is all about, why it is in the harbor and not in the open seas catching fish.